Rotary earth drilling and boring machine.



APPLICATION FILED JULY 30, 1913 Patented Dec. 1, 1914.

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INVENTOR WITNESSES H. R. NOPTZ. ROTARY EARTH DRILLING AND BOBING'MAOHINB.

APPLICATION FILED JULY 30, 1913 Patenned Dec. 1, 191% 3 SHEETS-SHEET 2.

$1 dVmvEN'roR 'HE. NORRIS PETLRS CO1. PHOTO-LITHQ, WASHINGYON. D. C

H. R. NOFTZ. ROTARY EARTH DRILLING AND BORING MACHINE. APPLIOATIOH FILED JULY 30. 1913. 1,1 19,446. Patented Dec. 1, 1914.

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IlNlE STATELQ PATENT OFFICE.

HARRY B. NOFTZ, OF TOLEDO, OHIO, .ASSIGNOR TO THE NATIONAL SUPPLY COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

ROTARY EARTH DRILLING AND BORING MACHINE.

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Application filed July 30, 1913.

To all 'w/wm it may concern Be it known that I, HARRY It. Nor'rz, a citizen of the United States, residing at T- ledo, in the county of Lucas and State of Ohio, have invented new and useful Iniproveinents in Rotary lllarth Drilling and Boring Machines, of which the following is a specification.

My invention relates generally to rotary drilling machines for the formation of gas wells, oil wells, and the like, but more specifically it relates to improvements whereby the carriers for the pipe-gripping jaws may be drawn nearer together or farther apart without it being necessary to maintain the carriers in a parallel relation to each other. I accomplish this by improvements in the swiveling devices 1 Referring to the accompanying drawings, Figure 1 is a plan of a rotary table equipped with. my invention; Figv 2, a side elevation of Fig. 1, with parts in section; Fig. 3, a vertical section through one of the swiveling devices; and Fig. 4i, a side view of one of the swivel nuts or sleeves. Fig. is a horizontal section of the left-hand side of Fig.2 on the level of the pin 2 L. Fig. (3 is a side elevation of the swivel-block section 17, Fig. 2. Fig. 7is an elevation of the block 17 looking to the left, Fig. 6. Fig. 8

is a horizontal section through the swivelbearing 14-, Fig. 3. Fig. 9 is a side elevation of the central portion of one of the screws 5, the bearing 5' and the locking block 8 being in vertical section.

On the drawings, 1 is a rotary horizontal table driven by the bevel gearing 2 and supported on rollers (one marked 3 being shown) supported by the base 1.

The parallel screws 5 are supported at opposite sides of the center of the table 1 in the bearings 5 supported by the table, the screws being prevented from moving lengthwise by means of the collars 6 engaging one face of the bearings 5 and the polygonal sections 7 engaging the opposite face of the bearings 5, the collars and polygonal sections being larger than the hearing portion 8 of the screws. One end of each screw has right-hand threads and the other left-hand threads. The outer ends of the screwshave polygonal portions 5 so that a Wrench or crank can be applied thereto to turn them. The polygonal sections 7 are engaged by the blocks 8 secured to tho Specification of Letters latent.

Patented Dec. 1, 1914..

Serial No. 781,950.

top of the bearings 5 by the bolts 8 to prevent the turning of the screws.

At right angles to the screws 5, I arrange the two bars or carriers 9 for the roller grips 10, one bar being at each side of the center of the table, each carrying a pair of grips arranged to engage the sides of the pipe 11 in a well-known manner.

The ends of the carriers are all constructed alike so that a description of one will suliice for a description of all. On Fig. 3, I show the end of one carrier 9. The said end is provided with a pair of horizontal projections or extensions 12 and 13, one continuous with the upper part of the carrier, and the other with the lower part thereof, whereby a considerable space is left between the projections 12 and 13 for the swivel devices. The lower face of the projection 12 is provided with the short vertical cylindrical swivel-bearing 14: and the upper face of the projection 13 is provided with the short vertical cylindrical swivelbearing 15, the bearings 14; and 15 being in vertical alinerncnt.

i1 swivel block 16, divided into lateral halves 17 and 18 by a plane at right-angles to the screws 5, has at its ends recesses 19 to receive the bearings 11 and 15 and constitute bearing boxes therefor. The block 16 has a round horizontal opening 20 therein to receive the body of the sleeve-nut 21, having the flange bearing against the outer face of the section 17 and provided with notches 23 to receive the spring-actuated pin 2-1 in the section 17, the said pin locking the sleeve-nut in any selected axial adjustment thereof. The inner end of the sleeve-nut 21 is provided with the washer 25 which rests against the outer face of the section 18, the nut 20 being screwed on the threads 27 on the end of the sleeve'nut and against the washer 25. The outer end of the sleeve-nut 21 is provided with a squared portion '28 by which it may be rotated.

The slcc'venuts 21 are all internally threaded and work on the threads of the screws 5 which extend through them. These sleeve-nuts have several oil-holes 29 which receive oil from the ducts 30 in the sections 17 and 18 and convey it to the screws 5.

It is seen that, if one of the screws 5 is rotated, two of the ends of the carriers 9 will be brought toward or away from each other without its being necessary to turn the other SC1'8W'5 at the same time or at the same speed.

I claim- 1. In a rotarydrillingniachine, a rotary table, a pair of grip ring carriers thereon, and a pair of screws for mov ng the car-11ers toward and away from each other, each end of each carrier having a pair of horizontal extensions, cylindrical hearings on the op posing faces of each pairof extensions;

':.' 2. Ina rotary drilling machine, rotary .Ptable, a pairof grip ring-=carriersthereon, andra pair of screws for moving-the carriers toward and away from e'ach other, each end ofeach carrier having a pair of horizontal extensions, cylindrical'bearings on; the opposing faces of eachpairof extensions, a swivel-block having end recesses to receive the said cylindrical bearings' andi divided into lateral sections, -a-hori.zontal sleeve-nut rotatablein each sWivel-blockand on each end of each screw, and anean's for :l1olding the sleeve-nut inthe swivel-blockand -for holding the sections oftherswivelabloclr in place.

In a rotary drillingrnachine, arrotary table, a pair of-grip ring-carriers thereon, anda pair of screws for moving the carriers toward and away from each other, each end nuance of each carrier having a pair ofihorizontal extensions, cylindrical hearings on the opposing faces of each pair of extensions, a swivel-block havingend recesses to receive the said cylindrical bearings and divided into lateralsections, a horizontal sleeve-nut rotatable in each swivel-block and on each end of-each screw, a notched flange on the sleeve-nut bearing on the swivel-block, and means "for engaging one of the notches and preventing the rotation ofthe sleeve-nut.

l. In a rotary :dri'lling machine, a rotary table, a pair ofgrip ring carriers thereon,

and a pair of screws" for moving the carriers toward and'ra vay from each other, each end of each-.zicarrier having a fpair of horizontal extensions, cylindrical hearings on the; opposing faces of each pairo'f extensions, a

swivel-block having end recesses to receive the said cylindrical bearings 1 and divided into lateralsections, a horizontal sleeve-nut rotatable in each swivel-block and on each sleeve-nut bearing on 'the' swivel-block, and

"a spring-pin for engaging one of the notches and prevent ng the rotatlon of the'sleeve- Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

- Washington, D16. 

